Never made any custom tweaks, but I use some of the build in and are very handy.
I'm now away from my PC (vacations) with only my mobile with me and I wonder if there's a way to make all the <p class="ls" /> in an epub to <br/> or something else that KOReader recognize (just a blank line between paragraphs) using the custom style tweaks?
Tried to find where the existing ones are located so I could understand the format used, but had no luck.
I only found an empty folder (style tweaks?) inside the KOReader's directory.
Suppose I could create a new file using the Text editor?